STRIP PIEZOELEMENT Russian patent published in 1994 - IPC

FIELD: piezotechnology. SUBSTANCE: strip piezoelement has piezoelectric plate 1 of AT cut of rectangular shape on which main faces exciting electrodes 2 and 3 are positioned. Presence of rectangular grooves 4 and 5 in piezoelectric plate 1 located on opposite main faces in symmetry to piezomechanical axis Z provides for reflection of part of energy and for its localization in underelectrode region which results in increased durability of piezoelement. Depth of grooves is selected equal to half-thickness of plate. That is why cutting of grooves and contouring of piezoelectric plate 1 is executed by means of photolithography in one operation. This contributes to facilitated manufacture of piezoelement. EFFECT: increased durability and facilitated manufacture of strip piezoelement. 2 dwg